diff --git a/website/builder/build.py b/website/builder/build.py
index dc732d6b..a0a530a5 100644
--- a/website/builder/build.py
+++ b/website/builder/build.py
@@ -189,7 +189,7 @@ def build(optimize=True):
         dist = Path(temporary) / 'dist'
         dist.mkdir()
         shutil.copytree(SITE / 'vendor', dist / 'vendor')
-        for name in ('index.html', 'site.css', 'site.js', 'search.js', 'edgeone.json'):
+        for name in ('index.html', 'site.css', 'site.js', 'search.js'):
             shutil.copyfile(SITE / name, dist / name)
         for path in sources():
             target = dist / path.relative_to(ROOT)
@@ -281,10 +281,14 @@ def build(optimize=True):
         build_info = {'sourceCommit': SOURCE_COMMIT, 'generatorHash': generator.hexdigest(), 'notes': len(note_paths),
                       'searchIndex': index_name, 'legacyRoutes': len(legacy)}
         (dist / 'build-info.json').write_text(json.dumps(build_info, indent=2) + '\n')
+        # 网站读取的是同内容的 .txt：EdgeOne 只压缩 text/plain 等类型，.md 的 text/markdown 不压缩
+        for document in list(dist.rglob('*.md')):
+            if document.relative_to(dist).parts[0] != 'learn':
+                document.with_suffix('.txt').write_bytes(document.read_bytes())
         entry = (dist / 'index.html').read_text()
         entry = bundle_entry(dist, entry)
         (dist / 'index.html').write_text(entry)
-        shell = ['/', '/_sidebar.md', '/README.md'] + re.findall(r'(?:src|href)="(/(?:app|vendor|style)-[0-9a-f]{16}\.(?:js|css))"', entry)
+        shell = ['/', '/_sidebar.txt', '/README.txt'] + re.findall(r'(?:src|href)="(/(?:app|vendor|style)-[0-9a-f]{16}\.(?:js|css))"', entry)
         worker = (SITE / 'sw.js').read_text().replace('__SHELL__', json.dumps(shell))
         (dist / 'sw.js').write_text(worker.replace('__BUILD__', hashlib.sha256(json.dumps(shell).encode()).hexdigest()[:12]))
         write_manifest(dist, build_info)
diff --git a/website/templates/edgeone.json b/website/templates/edgeone.json
deleted file mode 100644
index 199dd80c..00000000
--- a/website/templates/edgeone.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "headers": [
-    { "source": "/*.md", "headers": [{ "key": "Content-Type", "value": "text/plain; charset=utf-8" }] }
-  ]
-}
diff --git a/website/templates/index.html b/website/templates/index.html
index 2e9fdd24..23622287 100644
--- a/website/templates/index.html
+++ b/website/templates/index.html
@@ -11,8 +11,8 @@
     // 正文和侧边栏的 Markdown 在 Docsify 载入前就开始下载，Docsify 请求同一地址时直接用下载好的内容
     (function () {
       var path = location.hash.replace(/^#/, '').split('?')[0] || '/';
-      var file = path === '/' ? '/README.md' : /^\/notes\/[^.]+$/.test(path) ? path + '.md' : null;
-      [file, '/_sidebar.md'].forEach(function (href) {
+      var file = path === '/' ? '/README.txt' : /^\/notes\/[^.]+$/.test(path) ? path + '.txt' : null;
+      [file, '/_sidebar.txt'].forEach(function (href) {
         if (!href) return;
         var link = document.createElement('link');
         link.rel = 'preload';
diff --git a/website/templates/site.js b/website/templates/site.js
index eb863e85..5170ffa4 100644
--- a/website/templates/site.js
+++ b/website/templates/site.js
@@ -332,9 +332,10 @@
   window.$docsify = {
     name: 'CS-Notes',
     repo: 'https://github.com/CyC2018/CS-Notes',
-    homepage: 'README.md',
+    homepage: 'README.txt',
+    ext: '.txt',
     loadSidebar: true,
-    alias: { '/.*/_sidebar.md': '/_sidebar.md' },
+    alias: { '/.*/_sidebar.txt': '/_sidebar.txt' },
     subMaxLevel: 0,
     auto2top: true,
     notFoundPage: true,
diff --git a/website/templates/sw.js b/website/templates/sw.js
index 21136bee..7c68d8dc 100644
--- a/website/templates/sw.js
+++ b/website/templates/sw.js
@@ -30,7 +30,7 @@ function put(name, request, response) {
   caches.open(name).then(function (cache) { return cache.put(request, copy); }).then(function () { if (LIMITS[name]) return trim(name); });
 }
 function offlinePage(path) {
-  var title = decodeURIComponent(path.split('/').pop().replace(/\.md$/, ''));
+  var title = decodeURIComponent(path.split('/').pop().replace(/\.(md|txt)$/, ''));
   return new Response('# 当前离线\n\n《' + title + '》还没有在这台设备上打开过，联网后再试。已经读过的文章离线时也能打开。\n',
     { status: 200, headers: { 'Content-Type': 'text/plain; charset=utf-8', 'X-CS-Notes-Offline': '1' } });
 }
@@ -61,8 +61,8 @@ self.addEventListener('fetch', function (event) {
     if (path === '/' || path === '/index.html') event.respondWith(networkFirst(new Request('/'), STATIC, 3000, null));
   } else if (/^\/(app|vendor|style)-[0-9a-f]{16}\.(js|css)$|^\/search-index-[0-9a-f]+\.json$|^\/optimized\//.test(path)) {
     event.respondWith(cacheFirst(request, /^\/optimized\//.test(path) ? IMAGES : STATIC));
-  } else if (/\.md$/.test(path)) {
-    event.respondWith(networkFirst(request, PAGES, 3000, path === '/_sidebar.md' ? null : function () { return offlinePage(path); }));
+  } else if (/\.(md|txt)$/.test(path)) {
+    event.respondWith(networkFirst(request, PAGES, 3000, /^\/_sidebar\.(md|txt)$/.test(path) ? null : function () { return offlinePage(path); }));
   } else if (/\.(png|jpe?g|gif|svg|webp)$/.test(path)) {
     event.respondWith(networkFirst(request, IMAGES, 3000, null));
   }